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Finding the Fourth Proportional to 58,679.88, 80,964.14 and 33,186.76

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Solution

The fourth proportional to 58,679.88, 80,964.14 and 33,186.76 is: 45,789.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,679.88 : 80,964.14 = 33,186.76 : x
  2. Step 2: Convert to fraction form
    58,679.88/80,964.14 = 33,186.76/x
  3. Step 3: Cross multiply
    58,679.88x = 80,964.14 × 33,186.76
  4. Step 4: Simplify right side
    58,679.88x = 2,686,937,482.79
  5. Step 5: Solve for x
    x = 2,686,937,482.79/58,679.88
  6. Step 6: Final answer
    x = 45,789.76

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.